7b36a08108
usermode, using shared page. The structures and functions have vdso prefix, to indicate the intended location of the code in some future. The versioned per-algorithm data is exported in the format of struct vdso_timehands, which mostly repeats the content of in-kernel struct timehands. Usermode reading of the structure can be lockless. Compatibility export for 32bit processes on 64bit host is also provided. Kernel also provides usermode with indication about currently used timecounter, so that libc can fall back to syscall if configured timecounter is unknown to usermode code. The shared data updates are initiated both from the tc_windup(), where a fast task is queued to do the update, and from sysctl handlers which change timecounter. A manual override switch kern.timecounter.fast_gettime allows to turn off the mechanism. Only x86 architectures export the real algorithm data, and there, only for tsc timecounter. HPET counters page could be exported as well, but I prefer to not further glue the kernel and libc ABI there until proper vdso-based solution is developed. Minimal stubs neccessary for non-x86 architectures to still compile are provided. Discussed with: bde Reviewed by: jhb Tested by: flo MFC after: 1 month
147 lines
5.9 KiB
Plaintext
147 lines
5.9 KiB
Plaintext
# This file tells config what files go into building a kernel,
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# files marked standard are always included.
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#
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# $FreeBSD$
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#
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# The long compile-with and dependency lines are required because of
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# limitations in config: backslash-newline doesn't work in strings, and
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# dependency lines other than the first are silently ignored.
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#
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atkbdmap.h optional atkbd_dflt_keymap \
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compile-with "/usr/sbin/kbdcontrol -L ${ATKBD_DFLT_KEYMAP} | sed -e 's/^static keymap_t.* = /static keymap_t key_map = /' -e 's/^static accentmap_t.* = /static accentmap_t accent_map = /' > atkbdmap.h" \
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no-obj no-implicit-rule before-depend \
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clean "atkbdmap.h"
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#
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sunkbdmap.h optional sunkbd_dflt_keymap \
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compile-with "/usr/sbin/kbdcontrol -L ${SUNKBD_DFLT_KEYMAP} | sed -e 's/^static keymap_t.* = /static keymap_t key_map = /' -e 's/^static accentmap_t.* = /static accentmap_t accent_map = /' > sunkbdmap.h" \
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no-obj no-implicit-rule before-depend \
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clean "sunkbdmap.h"
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#
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ukbdmap.h optional ukbd_dflt_keymap \
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compile-with "/usr/sbin/kbdcontrol -L ${UKBD_DFLT_KEYMAP} | sed -e 's/^static keymap_t.* = /static keymap_t key_map = /' -e 's/^static accentmap_t.* = /static accentmap_t accent_map = /' > ukbdmap.h" \
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no-obj no-implicit-rule before-depend \
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clean "ukbdmap.h"
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#
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cddl/contrib/opensolaris/common/atomic/sparc64/opensolaris_atomic.S optional zfs compile-with "${ZFS_S}"
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crypto/blowfish/bf_enc.c optional crypto | ipsec
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crypto/des/des_enc.c optional crypto | ipsec | netsmb
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dev/atkbdc/atkbd.c optional atkbd atkbdc
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dev/atkbdc/atkbd_atkbdc.c optional atkbd atkbdc
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dev/atkbdc/atkbdc.c optional atkbdc
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dev/atkbdc/atkbdc_ebus.c optional atkbdc ebus
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dev/atkbdc/atkbdc_isa.c optional atkbdc isa
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dev/atkbdc/atkbdc_subr.c optional atkbdc
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dev/atkbdc/psm.c optional psm atkbdc
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dev/auxio/auxio.c optional auxio sbus | auxio ebus
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dev/esp/esp_sbus.c optional esp sbus
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dev/fb/creator.c optional creator sc
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dev/fb/fb.c optional sc
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dev/fb/gallant12x22.c optional sc
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dev/fb/machfb.c optional machfb sc
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dev/hwpmc/hwpmc_sparc64.c optional hwpmc
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dev/kbd/kbd.c optional atkbd | sc | ukbd
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dev/le/if_le_lebuffer.c optional le sbus
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dev/le/if_le_ledma.c optional le sbus
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dev/le/lebuffer_sbus.c optional le sbus
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dev/ofw/ofw_bus_if.m standard
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dev/ofw/ofw_bus_subr.c standard
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dev/ofw/ofw_console.c optional ofw_console
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dev/ofw/ofw_if.m standard
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dev/ofw/ofw_standard.c standard
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dev/ofw/openfirm.c standard
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dev/ofw/openfirmio.c standard
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dev/ofw/openpromio.c standard
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dev/pcf/envctrl.c optional pcf ebus
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dev/pcf/pcf_ebus.c optional pcf ebus
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dev/sound/sbus/cs4231.c optional snd_audiocs ebus | \
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snd_audiocs sbus
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dev/syscons/scgfbrndr.c optional sc
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dev/syscons/scterm-teken.c optional sc
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dev/syscons/scvtb.c optional sc
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dev/uart/uart_cpu_sparc64.c optional uart
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dev/uart/uart_kbd_sun.c optional uart sc
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kern/kern_clocksource.c standard
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kern/subr_dummy_vdso_tc.c standard
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kern/syscalls.c optional ktr
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libkern/ffs.c standard
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libkern/ffsl.c standard
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libkern/fls.c standard
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libkern/flsl.c standard
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libkern/memmove.c standard
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sparc64/central/central.c optional central
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sparc64/ebus/ebus.c optional ebus
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sparc64/ebus/epic.c optional epic ebus
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sparc64/fhc/clkbrd.c optional fhc
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sparc64/fhc/fhc.c optional fhc
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sparc64/isa/isa.c optional isa
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sparc64/isa/isa_dma.c optional isa
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sparc64/isa/ofw_isa.c optional ebus | isa
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sparc64/pci/apb.c optional pci
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sparc64/pci/fire.c optional pci
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sparc64/pci/ofw_pcib.c optional pci
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sparc64/pci/ofw_pcib_subr.c optional pci
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sparc64/pci/ofw_pcibus.c optional pci
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sparc64/pci/ofw_pci_if.m optional pci
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sparc64/pci/psycho.c optional pci
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sparc64/pci/sbbc.c optional sbbc uart
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sparc64/pci/schizo.c optional pci
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sparc64/sbus/dma_sbus.c optional sbus
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sparc64/sbus/sbus.c optional sbus
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sparc64/sbus/lsi64854.c optional sbus
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sparc64/sparc64/ata_machdep.c optional ada | atadisk | da
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sparc64/sparc64/autoconf.c standard
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sparc64/sparc64/bus_machdep.c standard
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sparc64/sparc64/cache.c standard
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sparc64/sparc64/cam_machdep.c optional scbus
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sparc64/sparc64/cheetah.c standard
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sparc64/sparc64/clock.c standard
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sparc64/sparc64/counter.c standard
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sparc64/sparc64/db_disasm.c optional ddb
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sparc64/sparc64/db_interface.c optional ddb
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sparc64/sparc64/db_trace.c optional ddb
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sparc64/sparc64/db_hwwatch.c optional ddb
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sparc64/sparc64/dump_machdep.c standard
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sparc64/sparc64/elf_machdep.c standard
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sparc64/sparc64/exception.S standard no-obj \
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compile-with "${NORMAL_S} -mcpu=ultrasparc"
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sparc64/sparc64/eeprom.c optional eeprom ebus | eeprom fhc | \
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eeprom sbus
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sparc64/sparc64/gdb_machdep.c optional gdb
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sparc64/sparc64/identcpu.c standard
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sparc64/sparc64/in_cksum.c optional inet | inet6
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sparc64/sparc64/interrupt.S standard no-obj \
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compile-with "${NORMAL_S} -mcpu=ultrasparc"
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sparc64/sparc64/intr_machdep.c standard
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sparc64/sparc64/iommu.c standard
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sparc64/sparc64/jbusppm.c standard
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sparc64/sparc64/locore.S standard no-obj
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sparc64/sparc64/machdep.c standard
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sparc64/sparc64/mem.c optional mem
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sparc64/sparc64/mp_exception.S optional smp \
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compile-with "${NORMAL_S} -mcpu=ultrasparc"
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sparc64/sparc64/mp_locore.S optional smp
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sparc64/sparc64/mp_machdep.c optional smp
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sparc64/sparc64/nexus.c standard
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sparc64/sparc64/ofw_machdep.c standard
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sparc64/sparc64/pmap.c standard
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sparc64/sparc64/prof_machdep.c optional profiling-routine
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sparc64/sparc64/rtc.c optional rtc ebus | rtc isa
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sparc64/sparc64/rwindow.c standard
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sparc64/sparc64/sc_machdep.c optional sc
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sparc64/sparc64/schppm.c standard
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sparc64/sparc64/spitfire.c standard
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sparc64/sparc64/ssm.c standard
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sparc64/sparc64/stack_machdep.c optional ddb | stack
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sparc64/sparc64/support.S standard \
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compile-with "${NORMAL_S} -mcpu=ultrasparc"
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sparc64/sparc64/sys_machdep.c standard
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sparc64/sparc64/swtch.S standard
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sparc64/sparc64/tick.c standard
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sparc64/sparc64/tlb.c standard
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sparc64/sparc64/trap.c standard
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sparc64/sparc64/tsb.c standard
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sparc64/sparc64/uio_machdep.c standard
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sparc64/sparc64/upa.c optional creator
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sparc64/sparc64/vm_machdep.c standard
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sparc64/sparc64/zeus.c standard
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